If you’re a runner, you’re probably familiar with the concept of high-intensity interval training (HIIT). HIIT involves alternating between periods of intense effort and passive recovery. At rest, this process is thought to help you burn more fat. Just one high-intensity workout can take up to 24 hours to recover from. A key part of HIIT is monitoring your heart rate when running. If you want to run at an optimal level and get the most out of your workout, it’s important to pay attention to your heart rate.
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